22660221405 has 16 divisors (see below), whose sum is σ = 37506574080. Its totient is φ = 11668711488.

The previous prime is 22660221323. The next prime is 22660221421. The reversal of 22660221405 is 50412206622.

It is a happy number.

It is not a de Polignac number, because 22660221405 - 2¹² = 22660217309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26045797 + ... + 26046666.

It is an arithmetic number, because the mean of its divisors is an integer number (2344160880).

Almost surely, 2^22660221405 is an apocalyptic number.

It is an amenable number.

22660221405 is a deficient number, since it is larger than the sum of its proper divisors (14846352675).

22660221405 is a wasteful number, since it uses less digits than its factorization.

22660221405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52092500.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 22660221405 in words is "twenty-two billion, six hundred sixty million, two hundred twenty-one thousand, four hundred five".